Rose RS151
Network player and integrated DAC featuring a 15.4-inch Full HD touchscreen and an ESS Sabre ES9038PRO chip, for lovers of high-resolution streaming.
Description
The Rose RS151 is a network player paired with an integrated digital-to-analogue converter, designed to centralise the playback of high-resolution music from streaming services, a digital library or a network connection. It is operated directly via its touchscreen or remotely via the Rose Connect app, without requiring a smartphone or tablet.
The conversion core relies on an ESS Sabre ES9038PRO DAC chip, paired with 4 GB of LPDDR3 memory. Measurements taken at the balanced output reach a level of 9.0 Vrms with a harmonic distortion of 0.0002% and a signal-to-noise ratio of 131 dB, values that reflect particularly clean and quiet digital reproduction. The frequency response extends from 20 Hz to 75 kHz (±0.5 dB) and the output impedance is 2.84 ohms. The 15.4-inch Full HD multi-touch screen serves as the main interface for navigation, cover art display and system settings, all controlled by Rose OS, a system based on a customised Android 7.1.
This type of network player is aimed at a user wishing to bring together the playback of multiple digital sources, streaming, stored files, internet radio, within a single central device, integrated into a demanding hi-fi system. Its compact format and weight of 11 kg make it a fully-fledged component of a setup where digital-to-analogue conversion quality is paramount.
Technical specifications
| Output level | 9.0Vrms (balanced) / 4.5Vrms (unbalanced) |
| THD | 0.0002% (balanced, 1kHz 9.0Vrms) / 0.0003% (unbalanced, 1kHz 4.5Vrms) |
| THD + N | 0.0003% (balanced, 1kHz 9.0Vrms) / 0.0005% (unbalanced, 1kHz 4.5Vrms) |
| IMD (SMPTE 4:1, 60Hz:7kHz) | -101dB (balanced), -100dB (unbalanced) |
| Signal to noise ratio (A wt) | 131dB (balanced), 124dB (unbalanced) |
| Dynamic range | Max 150dB (CCITT filter) |
| Stereo crosstalk | Max -143dB, 20Hz~20kHz |
| Frequency response | 20Hz to 75kHz (+/-0.5dB) |
| Output impedance | 2.84 ohms |
| Operating system | Rose OS Ver 1.22.4 (based on customised Android 7.1) |
| DAC chip | ESS Technology, SABRE ES9038PRO |
| Memory | 4GB LPDDR3 |
| Dimensions (H x W x D) | 430 x 319 x 125 mm |
| Weight | 11kg |
What to check before buying used
Check that the 15.4-inch touchscreen responds without lag across its entire surface, as calibration faults or dead pixels can appear with use. Test the network connection (Wi-Fi and Ethernet) as well as playback from the main streaming services, given that Rose OS is based on Android 7.1, which may require an update. Also ensure that both the balanced and unbalanced outputs deliver a stable level, free of hiss or distortion, which would indicate the condition of the ES9038PRO DAC.
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